FoE Director Oisín Coghlan said that it is perfect timing as the Government is set to publish details on its long-awaited new plans for renewable electricity in the coming days.

Solar energy is currently the only form of renewable energy which does not provide any form of state support. “Anyone who puts a solar panel on their roof must give away any electricity they don’t use themselves to the national grid for free,” said Mr Coghlan. “That makes no sense.”

Mr Coghlan added that a “rooftop revolution” is taking place all over the world with schools, homeowners, farmers and businesses installing solar panels on their buildings and making money from the electricity they generate.

At present, 1.5 million Germans generate solar electricity on their roofs, with 10,000MW of solar energy deployed in the UK since 2010, compared to 1MW in Ireland.

Mr Coghlan urged the Taoiseach to follow through on his pledge, and “put citizens and communities at heart of the energy revolution”.

A new cost-benefit analysis by Joseph Curtin, a research fellow at both the International and European Affairs and University College Cork, finds that solar panels on homes and businesses can make a significant contribution to Ireland’s switch to clean energy.

The analysis – commissioned by Friends of the Earth (FoE) – also finds that solar power can be easily supported at a reasonable cost for up to on 50,000 homes.

Community and farmer-led solar projects are also waiting for clear guidelines from the Government on future state support, including a guaranteed feed-in tariff and grants for rooftop solar on sheds.